How can I adb install an apk to multiple connected devices?

Question

I have 7 devices plugged into my development machine.

Normally I do adb install and can install to just a single device.

Now

Answer 1

With Android Debug Bridge version 1.0.29, try this bash script:

APK=$1

if [ ! -f `which adb` ]; then
    echo 'You need to install the Android SDK before running this script.';
    exit;
fi

if [ ! $APK ]; then
    echo 'Please provide an .apk file to install.'
else
    for d in `adb devices | ack -o '^\S+\t'`; do
        adb -s $d install $APK;
    done
fi

Not sure if it works with earlier versions.